<!DOCTYPE html>
<html>
<head>
  <style type="text/css">
    body {
      height: 2000px;
    }
    #scrollable {
      margin-top: 50px;
      margin-left: 50px;
      width: 200px;
      height: 200px;
    }
  </style>
</head>
<body>
<iframe src="iframe-scrolling-inner.html" id="scrollable"/>
</body>
</html>
